Relationships are never really like they seem in your favorite romantic comedies. The credits may roll for the likes of Harry and Sally, but for the rest of us there’s a lot more to work through.

But, if you’re lucky, you find the person who helps you not only weather through life’s ups and downs but also grow stronger — because you have each other. And that’s clearly the case with these adorable duos who have passed the test of time. Take a look.